Preparation of TiO2/sericite composite by mechano-chemical method and calcination with favorable pigment properties and photocatalytic properties

• Published in: Inorganic chemistry communications 2024-12, Vol.170, p.113353, Article 113353
• Main Authors: Liang, Yu, Sun, Jiajun, Chen, Huafu, Wang, Xuan, Bai, Xuefeng, Zhang, Han, Ding, Hao, Xue, Can
• Format: Article
• Language: English
• Subjects: Mechano-chemical method; Metatitanic acid; Photocatalytic properties; Pigment properties; Sericite
• ISSN: 1387-7003
• DOI: 10.1016/j.inoche.2024.113353

[Display omitted] •Metatitanic acid, which is inexpensive and highly reactive, is used as a raw material.•The synthesis process is quite novel and simple, which makes it suitable for industrial production.•The produced TiO2/sericite composite particle material possesses excellent pigment and photocatalytic properties. TiO2/sericite composite was fabricated by mechano-chemical method followed by calcination using metatitanic acid and sericite as raw materials. The relative parameters, such as pH value, were optimized to ensure the best pigment properties of the composite. The results of XRD diffraction, SEM, IR showed that TiO2, with anatase as the main phase, coated evenly on the surfaces of sericite by forming SiOTi chemical bonds. The prepared TiO2/sericite composite possesses pigment properties similar to those of titanium white and also exhibits excellent photocatalytic performance. These two advantages, together with simple preparation process and low cost, indicate the large application potential of TiO2/sericite composite particles in the near future.